Function Context.relCurveTo

Relative-coordinate version of curveTo(). All offsets are relative to the current point. Adds a cubic Bézier spline to the path from the current point to a point offset from the current point by rp3, using points offset by rp1 and rp2 as the control points. After this call the current point will be offset by rp3.

Given a current point of (x, y), cairo_rel_curve_to(cr, dx1, dy1, dx2, dy2, dx3, dy3) is logically equivalent to cairo_curve_to(cr, x+dx1, y+dy1, x+dx2, y+dy2, x+dx3, y+dy3).

It is an error to call this function with no current point. Doing so will cause an CairoException with a status of CAIRO_STATUS_NO_CURRENT_POINT.

Prototypes


void relCurveTo(
								

  Point!(double) rp1,
								

  Point!(double) rp2,
								

  Point!(double) rp3
								

);
								

								

void relCurveTo(
								

  double rp1x,
								

  double rp1y,
								

  double rp2x,
								

  double rp2y,
								

  double rp3x,
								

  double rp3y
								

);

Parameters

Name	Description
rp1	First control `point`
rp2	Second control `point`
rp3	offset to the end of the curve

Authors

Johannes Pfau	cairoD
Andrej Mitrovic	cairoD
cairo team	cairo

Copyright

License

cairoD wrapper/bindings	Boost License 1.0
cairo	LGPL 2.1 / MPL 1.1